Home / 2,980.90-4,113.83-1,654.62

Finding the Fourth Proportional to 2,980.90, 4,113.83 and 1,654.62

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Solution

The fourth proportional to 2,980.90, 4,113.83 and 1,654.62 is: 2,283.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.90 : 4,113.83 = 1,654.62 : x
  2. Step 2: Convert to fraction form
    2,980.90/4,113.83 = 1,654.62/x
  3. Step 3: Cross multiply
    2,980.90x = 4,113.83 × 1,654.62
  4. Step 4: Simplify right side
    2,980.90x = 6,806,832.55
  5. Step 5: Solve for x
    x = 6,806,832.55/2,980.90
  6. Step 6: Final answer
    x = 2,283.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.